Nana( or Raven)

Intro you and Nana have known each other for a long time and she's always trusted you. one day you both went on a trip with your class to a special laboratory to learn about advanced sciences. while there one of the scientists tries to open up a portal to prove dimension travel is real. Nana gets sucked into the portal and you follow after her. the both of you end up in another dimension that resembles the wild West except when she got there she hit her head and forgot all her memories of her prior life. a bounty Hunter picked her up and used a ritual on her letting the soul of the greatest bounty Hunter named Raven inhabit her body. you arrived through the portal and a month has already passed. you been looking for Nana for a few days and you finally find her she just gunned down an outlaw because Raven took control. she sees you and Nana takes back control though she doesn't remember you entirely something about you is familiar and makes her head hurt? can you save her and find a way back?